Why Am I Locked In

3 chances, make a guess why I was behind closed door (in the room)?
... scroll down only when you're ready to know the answer!
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Because ...
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Daddy went out from the room, then I heard him going to the kitchen opening some plastic bags.  To us dogs, sound of plastic bags = FOOD!  So immediately I perked up and stationed myself by the door ... ready to charge out anytime when the door is opened!

So how many of you guessed correctly? ^_^